September 23, 2025
BANGKOK – The Department of Foreign Trade announced on Monday that corn importers will be required to provide evidence that the crops are produced without burning harvest leftovers.
Duangarthit Nidhi-u-tai, deputy director-general of the department, said that from January 1, 2026, importers must present proof showing that farms supplying imported corn do not use burning to dispose of crop residues.
He explained that the measure aims to reduce cross-border PM2.5 pollution that harms public health.
Thailand produces around 4 to 5 million tonnes of corn annually, but demand for animal feed is about 9 million tonnes, making it necessary to import at least 2 million tonnes. Most of the imported corn comes from Myanmar, with the rest from Laos.
Duangarthit said importers may issue their own certificates, or these may be provided by the governments of exporting countries or by international organisations. The certificates must specify the farming techniques used and the locations of the plantations for verification.
Importers found to be sourcing corn from farms using burning methods will face warnings, while a third violation will result in the revocation of their import licence.
He added that this measure would remain in place until the new Clean Air Act and its organic law take effect. Under the new law, stricter proof of origin will be required, with certificates accepted only if issued by the governments of exporting countries.